| ZIP Codes: | 8 ZIP Codes (8 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 319 / 563 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:11:51 PM |
| Population: | 16,817 [See All] |
| FIPS: | 19031 |
| Land Area: | 484 sq mi |
| Water Area: | 2 sq mi |
| Coordinates: | 41.7883, -91.0921 |
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16,817 residents live across 8 ZIPs covering 484 sq mi, served by 8 distinct USPS-recognized cities.
Population moved from 16,921 to 16,817 from 2014 to 2024 — a -0.6% change. 3 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 52358 (West Branch, $91,686 median) and poorest ZIP 52306 (Mechanicsville, $61,875) are 13.8 miles apart — a 1.5× income gap across local geography.
Median home values vary 1.5× across this county — from $156,400 in 52255 (Lowden) to $240,300 in 52358 (West Branch).
Density varies 4× across the county — from 20 people/sq mi in 52721 (Bennett) to 74 in 52747 (Durant).
Educational attainment ranges from 14.4% bachelor's+ in 52216 (Clarence) to 34.1% in 52358 (West Branch) — the breadth of educational profiles across the area.
Within Iowa, this is the #42 most populous of 99 counties and ranks #38 for median household income .
Weighted by population, the typical household earns about $79,335 across the county — reflecting what a typical resident sees, not a simple ZIP average.
24.3% of adults age 25+ hold a bachelor's degree or higher (2,905 of 11,946 reporting).
8 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 52772 | Tipton | Standard | 5,348 | $81,267 | 131.7 | 7.0% |
| 52358 | West Branch | Standard | 3,598 | $91,686 | 77.6 | -5.6% |
| 52747 | Durant | Standard | 2,160 | $82,313 | 29.3 | -1.3% |
| 52306 | Mechanicsville | Standard | 1,642 | $61,875 | 75.4 | -12.4% |
| 52216 | Clarence | Standard | 1,551 | $67,857 | 61.5 | 16.3% |
| 52255 | Lowden | Standard | 980 | $71,250 | 40.0 | -11.5% |
| 52721 | Bennett | Standard | 809 | $82,143 | 40.5 | 17.4% |
| 52337 | Stanwood | Standard | 729 | $66,875 | 27.8 | -20.8% |